🛡️ Sentinel: [MEDIUM] subprocess 호출에 대한 타임아웃 추가를 통한 DoS 취약점 해결

[seonghobae]

🚨 Severity: MEDIUM
💡 Vulnerability: subprocess.run을 통해 외부 커맨드(gh)를 실행할 때 타임아웃이 설정되지 않아, 네트워크나 기타 환경 문제로 인해 외부 명령이 무한 대기 상태(hang)에 빠질 수 있으며, 이는 시스템 자원 고갈을 유발하는 DoS (Denial of Service) 공격 벡터가 될 수 있습니다.
🎯 Impact: 자동화 스크립트가 무기한으로 중지되어 CI/CD 파이프라인 지연 및 다른 실행을 방해할 위험이 있습니다.
🔧 Fix: _GH_COMMAND_TIMEOUT_SECONDS = 60을 설정하고 대상 스크립트들의 모든 subprocess.run 호출에 timeout 인자를 추가했습니다. 또한, subprocess.TimeoutExpired 예외를 처리하여 실패 시 안전하게 적절한 에러 구조를 반환하도록 하였습니다.
✅ Verification: uv run pytest 및 관련 테스트 스크립트를 통해 성공적으로 통과됨을 확인했습니다.

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PR created automatically by Jules for task 5327409548505591989 started by @seonghobae

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Reviewing files that changed from the base of the PR and between 04d0bc2 and 27f7d2c.

📒 Files selected for processing (5)

• .jules/sentinel.md
• scripts/build_pr_queue_governance.py
• scripts/build_procurement_due_diligence.py
• tests/test_pr_queue_governance.py
• tests/test_pr_queue_governance_timeout.py

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[seonghobae]

@opencode-agent Please review exact head 9bf3a07fa4fcd146a87a1deb61813d9ef3827a8c for the bounded subprocess-availability hardening. The intended contract is limited to adding a finite timeout to gh subprocesses and handling subprocess.TimeoutExpired fail-closed without weakening existing error handling or governance behavior. Please evaluate the current head and submit formal review evidence against this SHA.

[seonghobae]

@coderabbitai review

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[opencode-agent]

Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

• Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

• Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

• Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

• Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

• Result: REQUEST_CHANGES

• Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 27f7d2cd6d6640388cea1d4b3dd71dffd1baaf9e.

• Head SHA: 27f7d2cd6d6640388cea1d4b3dd71dffd1baaf9e

• Workflow run: 32124686283

• Workflow attempt: 1

Coverage evidence

Coverage evidence job did not run or did not publish coverage evidence.

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (3 files)"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file (3 files)"]
  R1 --> V1["required checks"]
  Evidence --> S2["Test (2 files)"]
  S2 --> I2["regression suite"]
  I2 --> R2["Review risk: Test (2 files)"]
  R2 --> V2["targeted test run"]

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[opencode-agent]

OpenCode Review Overview

• Head SHA: 27f7d2cd6d6640388cea1d4b3dd71dffd1baaf9e
• Workflow run: 32124686283
• Workflow attempt: 1
• Gate result: REQUEST_CHANGES (approval step)

Pull request overview

OpenCode cannot approve yet because required coverage evidence did not pass.

Review outcome

1. HIGH .github/workflows/opencode-review.yml:1 - Coverage evidence did not prove required test/docstring evidence

• Problem: The required coverage-evidence job result was failure, so OpenCode cannot establish approval sufficiency for this head.

• Root cause: Automated approval is only valid when the same-head coverage-evidence job proves supported repository test suites passed and configured docstring gates passed or were advisory, or reports not applicable because no supported source files or package manifests exist. Missing, failed, skipped, unavailable, or unsupported-tooling test evidence is a blocker.

• Fix: Install or configure the repository test/docstring evidence tooling when source files or package manifests exist, rerun the current-head coverage-evidence job, and approve only after it reports success with required evidence or explicit no-source not-applicable evidence.

• Regression test: Keep the approval branch checking needs.coverage-evidence.result == success before posting APPROVE, and publish REQUEST_CHANGES when coverage-evidence blocker states such as cancelled, skipped, failed, unsupported-tooling, or below-100 evidence are present.

• Result: REQUEST_CHANGES

• Reason: coverage-evidence result was failure, so required test/docstring evidence was not proven for current head 27f7d2cd6d6640388cea1d4b3dd71dffd1baaf9e.

• Head SHA: 27f7d2cd6d6640388cea1d4b3dd71dffd1baaf9e

• Workflow run: 32124686283

• Workflow attempt: 1

Coverage evidence

Coverage evidence job did not run or did not publish coverage evidence.

Changed-File Evidence Map

flowchart LR
  PR["PR changed files"] --> Evidence["OpenCode bounded evidence"]
  Evidence --> S1["Changed file (3 files)"]
  S1 --> I1["repository behavior"]
  I1 --> R1["Review risk: Changed file (3 files)"]
  R1 --> V1["required checks"]
  Evidence --> S2["Test (2 files)"]
  S2 --> I2["regression suite"]
  I2 --> R2["Review risk: Test (2 files)"]
  R2 --> V2["targeted test run"]

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[seonghobae]

Superseded by #988. The current #988 head 07e3d266ea5aa0da5c6abfaed92594d1dfd6ff67 is a strict descendant of this PR's unchanged head 27f7d2cd6d6640388cea1d4b3dd71dffd1baaf9e (ahead 11, behind 0), contains all five files changed here, and adds bounded stdout/stderr capture, process-group/deadline cleanup, strict UTF-8 machine-output handling, stable malformed-JSON failure mapping, and the corresponding regressions. #988 has been retargeted directly to current protected main, so landing this predecessor separately would create a redundant security/availability lane. Closing unmerged; #988 must still satisfy fresh exact-head review and required evidence on its full combined diff.

[google-labs-jules]

Superseded by #988. The current #988 head 07e3d266ea5aa0da5c6abfaed92594d1dfd6ff67 is a strict descendant of this PR's unchanged head 27f7d2cd6d6640388cea1d4b3dd71dffd1baaf9e (ahead 11, behind 0), contains all five files changed here, and adds bounded stdout/stderr capture, process-group/deadline cleanup, strict UTF-8 machine-output handling, stable malformed-JSON failure mapping, and the corresponding regressions. #988 has been retargeted directly to current protected main, so landing this predecessor separately would create a redundant security/availability lane. Closing unmerged; #988 must still satisfy fresh exact-head review and required evidence on its full combined diff.

Understood. Acknowledging that this work is superseded by #988 and is now obsolete, I am stopping work on this task.